I thought this was really interesting, Sony has announced they will support Linux on their Playstation3 with an attachable 60gb hard drive.  Source: http://www.gamespot.com/news/6145972.html - scroll down about 5 paragraphs to the update section.

I still own the original Linux kit for the Playstation2, but using MIPS and have such little system memory made it really hard to do anything except miniature game demos.  It'll be interesting to see what kind of functionality the PS3 will have, especially since the machine was created ideally to be the main living room entertainment piece.

-Robert